OMEGA. A RARE 18K GOLD AUTOMATIC CALENDAR WRISTWATCH Constellation, Ref 168.0063368.0858, c.1970sOMEGA. A RARE 18K GOLD AUTOMATIC CALENDAR WRISTWATCHModel: ConstellationReference: 168.0063368.0858Date: c.1970sMovement: 28-jewel Cal.1021 automatic, No.37368745Dial: Gold, applied gilt hour markers, day and date aperture at 3, gilt hands, centre secondsCase: Square with rounded edgesStrap/Bracelet: Black leatherBuckle/Clasp: Stainless steel, OmegaSigned: Case, dial and movementSize: 37mm x 38mmNone